Finding the Third Proportional to 138,182 and 305,404

Step by Step Solution

1. Step 1: Write the proportion equation
   138,182 : 305,404 = 305,404 : x
2. Step 2: Convert to fraction form
   138,182/305,404 = 305,404/x
3. Step 3: Cross multiply
   138,182x = 305,404 × 305,404
4. Step 4: Simplify right side
   138,182x = 93,271,603,216
5. Step 5: Solve for x
   x = 93,271,603,216/138,182
6. Step 6: Final answer
   x = 674,990.98